Component Information - CAESAR II - Help

CAESAR II Users Guide

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CAESAR II
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CAESAR II Version
12

Specifies details for special components (such as bends, rigid elements, expansion joints, and tees), which require additional information. Select or clear these options by double-clicking the applicable component check box on the Classic Piping Input dialog box.

Bend

Double-click Bend if the active element ends in a bend, elbow or mitered joint. This displays the auxiliary panel on the right side of the screen. CAESAR II usually assigns three nodes to a bend to define the near, mid, and far nodes on the bend. For more information, see Bend.

Rigid

Double-click Rigid if the active element is much stiffer than the connecting pipe, such as a flange or valve. This displays the auxiliary panel to collect the component weight. For more information, see Rigid.

For rigid elements, CAESAR II follows these rules:

  • When the rigid element weight is defined as a value other than zero, CAESAR II computes any extra weight due to insulation and contained fluid. The software then adds that value to the defined weight value.

  • The weight of fluid added to a non-zero weight rigid element is equal to the same weight that would be computed for an equivalent straight pipe. The weight of insulation added is equal to the same weight that would be computed for an equivalent straight pipe multiplied by 1.75.

  • If the weight of a rigid element is zero or blank, CAESAR II assumes that the element is an artificial construction element rather than an actual piping element. In this case, the software does not calculate an insulation or fluid weight for that element.

  • The stiffness of the rigid element is relative to the diameter wall thickness. Make sure that the diameter on a rigid element indicates the rigid stiffness to generate.

Expansion Joint

Double-click Expansion Joint if the active element is an expansion joint. This displays the auxiliary panel used to collect stiffness parameters and effective diameter. For more information, see Expansion Joints.

Expansion joints can be modeled as zero-length (with all stiffnesses acting at a single point) or as finite-length (with the stiffnesses acting over a continuous element). In the single-point case, you must type all stiffness. In the continuous element case, you must omit either the lateral or angular stiffness.

SIF & Tees

Double-click SIF & Tees if the active element has special stress intensification factors (SIFs). CAESAR II automatically calculates these factors for each component. For more information, see SIFs & Tees.

Bends, rigids, and expansion joints are mutually exclusive. For more information, see Rigid and Expansion Joints.